Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of August 10, 2026.
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Dr. Kathleen Marie Powis, MD

Individual provider Internal Medicine Physician · NPI 1619967783

Dr. Kathleen Marie Powis, MD practises Internal Medicine in Boston, Massachusetts. Graduated from Virginia Commonwealth University, School of Medicine in 2003, 23 years ago. Practices with The General Hospital Corporation, a 1,276-clinician group and accepts Medicare assignment. Licensed in Massachusetts.

Years since qualifying
23
Trained at
Virginia Commonwealth University, School of Medicine
Licensed in
MA
In the registry since
2005
Specialties on file
2
What do these letters mean?
MD — Doctor of Medicine
A physician who completed allopathic medical school.

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Practice location Address checks out

55 Fruit St Bar 913 Massachusetts General Hospital
Boston, MA 02114-2621 Not confirmed with CMS for 14 years — call before visiting
Phone: (617) 726-7782
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Internal Medicine Physician (primary) Taxonomy 207R00000X · Licence 224264 (MA)
Pediatrics Physician Taxonomy 208000000X · Licence 224264 (MA)

Record details

NPI number1619967783
Entity typeIndividual (Type 1)
GenderFemale
Credentials MD
Sole proprietorYes
NPI enumeratedOctober 28, 2005
Last updated in NPPESJuly 19, 2012

Medicare enrollment

From the CMS Doctors & Clinicians file — this clinician is enrolled in Medicare.

Medicare specialtyINTERNAL MEDICINE
Also practisesPEDIATRIC MEDICINE
Medical schoolVIRGINIA COMMONWEALTH UNIVERSITY, SCHOOL OF MEDICINE
Graduated 2003 (23 years in practice)
Group practice The General Hospital Corporation — 1276 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
Practice locations2 on file with Medicare

Medicare patients and services, 2024

From the CMS Medicare Physician & Other Practitioners file for calendar year 2024. It counts Original Medicare patients only, so a practice that mostly sees Medicare Advantage or privately insured patients looks smaller here than it is.

Medicare patients93
Services billed 98 a service is one billed item, such as a visit, a test or a procedure
Average patient age72

Dollar amounts are not shown. What Medicare pays a practice is gross billings, before staff, premises and tax and including the cost of any drugs it administers, so it is not what a clinician earns.

Practises at

Facilities the CMS Facility Affiliation file lists for this clinician.

Colleagues at The General Hospital Corporation

Clinicians the CMS Doctors & Clinicians file lists under the same group practice. CMS counts 1276 clinicians in the practice; 12 are shown here.

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